Banner EZ-SCREEN­ Safety Light Curtain Systems - Manual (Page 63)

P/N 133487
61
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
Overview
61
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
EZ-SCREEN
Instruction Manual
Cascadeable EZ-SCREEN
7.6 Cascaded Sensor Configuration Settings
Setting cascaded sensors for scan code, trip or latch output,
external device monitoring (EDM), reduced resolution, fixed
blanking and inverted display is identical to the procedure for
non-cascadeable emitters and receivers (see Section 4).
Scan codes for each emitter and receiver pair must match.
However, for cascaded installations, scan codes must alternate
on adjacent systems as described in Section 3.1.8 and Figure
3-8. See warning below.
While the scan code, reduced resolution, fixed blanking, and
inverted display settings are independent for each cascaded
sensor pair, the trip/latch mode and EDM settings must be
determined by the first receiver in the cascade (closest to the
machine interface), which controls the OSSD outputs. All other
receivers in the cascade must be set for trip mode and
2-channel EDM (factory default settings).
The settings on the first receiver then determine trip or latch
mode and 1- or 2-channel EDM/aux. output, and this is the only
receiver that requires a reset following a latch condition.
7.6.1 Fixed Blanking
One or more areas within any cascaded EZ-SCREEN sensor
pair can be blanked out, just as with other EZ-SCREEN light
screens. Each sensor pair within a cascade must be
programmed separately, if required. See Section 3.4.3 for
more information and programming procedure.
7.7 Configuration for Cascaded Operation
Each cascaded system must be configured, before it can be run
in a production environment.
Before configuration, install all emitters and receivers per
Sections 3 and 7. The last receiver must be terminated
either with a terminator plug or by connecting two closed
mechanical contacts (see Sections 7.8 and 7.9).
Perform the following procedure on the first receiver only in
the cascade (closest to the machine interface).
1. From either normal operation or a power OFF condition, set
the second and fifth DIP switches (RR and T/L) both to the
left (RR and T position).
2. Set the third and fourth DIP switches (the second T/L and RR)
both to the right (L and OFF position); see Figure 7-7.
3. The receiver should be in a lockout condition or power OFF.
4. If power is OFF: Apply power
Lockout condition: Perform a valid reset sequence (close
the reset switch for 0.25 to 2 seconds, then reopen).
5. Coming out of lockout or during startup, the DIP switch
configuration will be recognized as Cascaded Teach Mode,
indicated by the following:
• First receiver display shows
No E-stop connected: “4C,” “3C,” or “2C” ON steady
E-stop w/closed contacts: “4CE,” “3CE,” or “2CE” ON
steady
E-stop w/open contacts: “4CE,” “3CE” or “2CE” flashing
• Last cascaded receiver display shows
Terminator connected: “1C” ON steady
E-stop w/closed contacts: “1CE” ON steady
E-stop w/open contacts: “1CE” flashing
• Other receivers display “1C” ON steady
• All receiver Zone indicators OFF
• All receiver Yellow reset indicators OFF
• All receiver Status indicators solid red
6. To enable and exit Cascade Teach Mode, reconfigure DIP
switches for normal operation.
7. Perform a valid reset sequence (see Step 4), or cycle power.
1. Install cascade system per Sections 3
and 7 of this manual.
With Power ON:
2. Set T/L and RR switches as shown on
first receiver only (do not change
SC2/SC1 or E1/E2 switch positions).
3. Press the Reset button or cycle power.
4. Reconfigure DIP switches for normal
operation.
5. Press the Reset button or cycle power.
NO TE: If the EDM wiring does not match
the switch position shown (E2), an
EDM error occurs and fixed blanking
or cascade configuration will not be
allowed.
Figure 7-7. DIP switch configuration to enable cascade installation
WARNING . . .
Scan Code
In situations where multiple systems are mounted closely
together, or where a secondary emitter is in view (within ±5°),
within range of an adjacent receiver; the adjacent systems must be
configured for different Scan Codes (i.e., one system set for Scan
Code 1 and the other for Scan Code 2).
If not, a receiver may synchronize to the signal from the wrong
emitter, reducing the safety function of the light screen.
This situation will be discovered by performing the trip test
(see Section 3.4.3).